I am brand new to JavaScript and I would like practice my skills using a simple windows based IDE. While learning I do not want to use any CSS or HTML. I would like if possible
There are a lot of good online IDEs at the moment. One of my favorites is JSFiddle, but you said you don't want to use CSS and HTML so it's superfluous in this case. You can use JSBin, opening only the Javascript and Console panels. Another very good one is, in my opinion, Ideone, which has a lot of languages(for JS you have to select Javascript Spidermonkey). The last one I suggest you is JSConsole, from the creator of JSBin, which is basically an enhanced Javascript console(as the name states).